Docs: Documented time stamp representation

Fix: UTC time stamp creation is now only done
if add time stamp feature is toggled on

README.md

@@ -200,6 +200,10 @@ The `conf.toml` file looks as follows:
 # Timestamp is when an user was created within LDAP database user entry
 # Make sure to also include the field "'ldapAttributes'" under the array "objectclass_common" 
 # Within the config file. Otherwise one gets an error while creating an user within LDAP.
+# The timestamp is saved in the format of rfc 3339 with the UTC time zone.
+# Example of date and time 'year: 2024, month: may, day: 9 and hour: 10, minutes: 49 and seconds: 34'
+# 2024-05-09T10:49:34.545686277+00:00
+# Link: To this rfc 3339 => https://www.rfc-editor.org/rfc/rfc3339
 ldap_add_created_at = true
 # Default value of the Slurm default QOS for the student group
 student_default_qos = 'basic'

usermgmt_lib/src/ldap.rs

@@ -92,6 +92,24 @@ where
     where
         T: LdapCredential,
     {
+        fn add_fields<T>(
+            connection: &mut LdapConn,
+            entity: &NewEntity,
+            ldap_config: &LDAPConfig<T>,
+            fields: Vec<(&str, HashSet<&str>)>,
+        ) -> AppResult
+        where
+            T: LdapCredential,
+        {
+            let result_from_adding = connection.add(
+                &format!("uid={},{}", entity.username, ldap_config.base()),
+                fields,
+            );
+
+            ldap_is_success(result_from_adding).context("Unable to create LDAP user!")?;
+            Ok(())
+        }
+
         let un = entity.username.as_ref().as_str();
         let gid = entity.group.gid().to_string();
         let uid = uid.to_string();
@@ -134,19 +152,18 @@ where
                 ("sshPublicKey", hashset! {pubkey}),
                 ("loginShell", hashset! {config.login_shell.as_str()}),
             ];
-            let created_at = Utc::now().to_rfc3339();
+
             if config.ldap_add_created_at {
+                let created_at = Utc::now().to_rfc3339();
                 let attr = hashset! {created_at.as_str()};
                 fields.push(("createdAt", attr));
-            }
 
-            let result_form_adding = connection.add(
-                &format!("uid={},{}", entity.username, ldap_config.base()),
-                fields,
-            );
-
-            ldap_is_success(result_form_adding).context("Unable to create LDAP user!")?;
-            Ok(())
+                add_fields(connection, entity, ldap_config, fields)?;
+                Ok(())
+            } else {
+                add_fields(connection, entity, ldap_config, fields)?;
+                Ok(())
+            }
         })
     }
 }